Browsing Enerji Sistemleri Mühendisliği Bölümü Makale Koleksiyonu by Issue Date
Now showing items 1-20 of 30
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Electrocatalytic oxidation of methanol on PtNiZn electrode in alkaline medium
(SPRİNGER, 2011)In this study, a platinum electrode was coated with NiZn layer (Pt/NiZn) in a nickel zinc bath by electrodeposition for use as anode material for methanol electrooxidation in alkaline solution. The electrode prepared was ... -
Electrocatalysis of Ni-promoted Cd coated graphite toward methanol oxidation in alkaline medium
(ELSEVİER, 2012)The nickel–cadmium (Ni-promoted Cd) catalyst for using direct methanol fuel cell (DMFC) applications is electrochemically deposited on a graphite substrate. The activity of methanol oxidation is assessed by recording ... -
Electrocatalytic oxidation of methanol on Ru deposited NiZn catalystat graphite in alkaline medium
(ELSEVİER, 2013)The methanol oxidation on C/NiZn-Ru electrode in a 1.00 M KOH and 1.00 M KOH + 1.00 M methanolsolutions at different scan rates and temperatures was studied by the cyclic voltammetry (CV), electro-chemical impedance ... -
Entropy Generation for Nonisothermal Fluid Flow: Variable Thermal Conductivity and Viscosity Case
(HINDAWI PUBLISHING CORPORATION, 2013)This paper investigates the entropy generation of a nonisothermal, incompressible Newtonian fluid flowing under the effect of a constant pressure gradient in plane Poiseuille flow. The effects of variable viscosity and ... -
The electrocatalytic properties of lithium copper composite in the oxygen reduction reaction
(ELSEVİER, 2014)A new carbon supported lithium-copper cathode catalyst (gel@LiCu) is composed of activated carbon (@) supported gel, LiNO3 and CuCl2 mixture is investigated in the oxygen reduction reaction. The gel@LiCu cathode, which ... -
Electrochemical performance of lithium molybdenum composite catalyst in oxygen reduction reaction
(ELSEVİER, 2015)A gel/LiMo catalyst was prepared as a cathode material via the solegel process and applied calcination at different times. The influence of calcination times, properties and the electrochemical performance of the catalyst ... -
Effect of higher order taylor series expansion terms of the ni-prim on the solution accuary of 2 nd lastic prblems.
(PAMUKKALE UNIV., 2015)In this study, effects of higher order Taylor series expansion terms in the nodal integration scheme of radial point interpolation method (NI-RPIM) are investigated on the solution accuracy of 2D elastic problems. The nodal ... -
Experimental and quantum chemical studies on corrosion inhibition effect of 5,5 diphenyl 2-thiohydantoin on mild steel in HCl solution
(ELSEVİER, 2016)The inhibition efficiency of 5,5 diphenyl 2-thiohydantoin (DPTH) against mild steel (MS) corrosion has been investigated in 0.1 M HCl solution by using electrochemical techniques and quantum chemical calculations. The ... -
The importance of the different kinds of energy sources for energy future of Turkey
(EDP SCIENCES., 2016)Nowadays, the need of energy has been increasing day by day with the population growth and the advancements of technology. In this study, the current state of nuclear, wind and solar energy on the worldwide has been generally ... -
Determination of wind potential of a specific region using Artificial neural networks
(Advanced Technology and Science, 2017)There is a widespread trend in alternative energy sources in today's world. Achieving energy without harming the environment has been the most important target of the countries in recent years. For this reason, it is ... -
6-Anahtarlı 3-seviyeli eviricide uzay vektör darbe genişlik modülasyon tekniğinin uygulaması
(DÜZCE ÜNİV., 2017)Uzay vektör darbe genişlik modülasyonu (UVDGM) tekniği bu çalışma ile 6-anahtarlı 3-seviyeli evirici üzerinde denenmiştir. Evirici topolojisinde 6 adet IGBT yarıiletkenanahtar kullanılarak eviricinin her bir çıkış uçlarına ... -
The noble metal loading binary ironezinc electrode for hydrogen production
(ELSEVİER, 2017)The binary FeZn was electrodeposited on graphite surface for hydrogen evolution reactions. Then, zinc was leached from the surface by an etching method in alkaline solution. A trace amount of platinum and ruthenium ... -
Performance and economic analysis of a variable refrigerant flow (VRF) system.
(ÇUKUROVA ÜNİV., 2017)This study deals with the exergetic modeling and performance/cost evaluation of a variable refrigerant flow (VRF) air conditioning system. An experimental setup was established to investigate the system performance under ... -
Investigation of noble metal loading CoWZn electrode for HER
(ELSEVİER, 2017)It is important to metal deposition on the electrode surface to increase the electrocatalytic activity of the electrodes. CoWZn coated the graphite rod was used to prepare the cathode electrode. Moreover, then Pt and Ru ... -
The investigation of velocity and temperature changes by CFD analysis for intake stroke of LPG fuel stratified charge engine
(2017)This study numerically investigates the in-cylinder speed and temperature variations for fuel-air mixture intake at the induction stroke by the LPG cylinder of an engine running on the stratified charge principle. The ... -
Determination of Weibull parameters by different numerical methods and analysis of wind power density in Osmaniye, Turkey
(SHARIF UNIV TECHNOLOGY, 2017)In this study, the potential of wind energy in Osmaniye Region has been analysed statistically on the basis of information that has been measured hourly between the years 2009 to 2013. The two-parameter Weibull Distribution ... -
The overview of nuclear energy situation in the World and Turkey
(EDP SCIENCES., 2017)The dependence on the energy and its use has increased in every country due to the increasing population and advanced technology. As a result of it, the reserves of fossil fuel have decreased, several energy crises have ... -
Vortex shedding control of circular cylinder by perforated shroud in deep water
(EDP SCIENCES., 2017)The aim of the present study is to control the vortex shedding downstream of a circular cylinder (inner cylinder) by the existence of outer perforated cylinder concentrically located around the inner cylinder in deep water. ... -
Investigation of nanofluid flow characteristics and wall stress concentration locations in a 3D channel with sharp edge rectangular ribs
(YILDIZ TECHNICAL UNIV, 2017)Flow regimes in various channels can introduce different responses that interact with inside of channel walls. Hence both flow characteristic and its effect on wall surfaces should be investigated, especially for a new ... -
Copper – Zinc and Copper-Iron Binary Electrode for Hydrogen Evolution Reaction
(SAKARYA ÜNİV., 2018)The different coatings with high hydrogen evolution reaction (HER) durability activity were prepared by electrodeposition. Iron, copper and zinc alloys were deposited on graphite electrode. The binary coating prepared ...